4c10e0bbca
FUSE operations in blobfs_fuse.c are extracted from test/blobfs/fuse/fuse.c to blobfs_fuse.c in module blobfs_bdev. And it is extended to create one new thread dedicatedly for one FUSE mountpoint to handle FUSE requests by blobfs sync API. spdk_blobfs_bdev_mount is implemented as the export API. So related code can be utilized by other modules/apps. Now test/blobfs/fuse/fuse.c is much simplified with function spdk_blobfs_bdev_mount. Change-Id: Iefa16977fabbae2008c8f65fe1b69d650b6fd18d Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/469347 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
99 lines
3.5 KiB
C
99 lines
3.5 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** \file
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* Operations on blobfs whose backing device is spdk_bdev
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*/
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#ifndef SPDK_BLOBFS_BDEV_H
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#define SPDK_BLOBFS_BDEV_H
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#include "spdk/stdinc.h"
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#include "spdk/bdev.h"
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#include "spdk/config.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* blobfs on bdev operation completion callback.
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*
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* \param cb_arg Callback argument.
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* \param fserrno 0 if it completed successfully, or negative errno if it failed.
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*/
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typedef void (*spdk_blobfs_bdev_op_complete)(void *cb_arg, int fserrno);
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/**
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* Detect whether blobfs exists on the given device.
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*
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* \param bdev_name Name of block device.
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* \param cb_fn Called when the detecting is complete. fserrno is -EILSEQ if no blobfs exists.
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* \param cb_arg Argument passed to function cb_fn.
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*/
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void spdk_blobfs_bdev_detect(const char *bdev_name,
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spdk_blobfs_bdev_op_complete cb_fn, void *cb_arg);
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/**
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* Create a blobfs on the given device.
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*
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* \param bdev_name Name of block device.
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* \param cluster_sz Size of cluster in bytes. Must be multiple of 4KiB page size.
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* \param cb_fn Called when the creation is complete.
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* \param cb_arg Argument passed to function cb_fn.
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*/
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void spdk_blobfs_bdev_create(const char *bdev_name, uint32_t cluster_sz,
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spdk_blobfs_bdev_op_complete cb_fn, void *cb_arg);
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#ifdef SPDK_CONFIG_FUSE
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/**
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* Mount a blobfs on given device to a host path by FUSE
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*
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* A new thread is created dedicatedly for one mountpoint to handle FUSE request
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* by blobfs API.
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*
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* \param bdev_name Name of block device.
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* \param mountpoint Host path to mount blobfs.
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* \param cb_fn Called when mount operation is complete. fserrno is -EILSEQ if no blobfs exists.
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* \param cb_arg Argument passed to function cb_fn.
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*/
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void spdk_blobfs_bdev_mount(const char *bdev_name, const char *mountpoint,
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spdk_blobfs_bdev_op_complete cb_fn, void *cb_arg);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPDK_BLOBFS_BDEV_H */
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